182878480 has 20 divisors (see below), whose sum is σ = 425192652. Its totient is φ = 73151360.

The previous prime is 182878471. The next prime is 182878499. The reversal of 182878480 is 84878281.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89794576 + 93083904 = 9476^2 + 9648^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×182878480² = 66889076894220800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 182878480.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142911 + ... + 1143070.

Almost surely, 2^182878480 is an apocalyptic number.

182878480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

182878480 is an abundant number, since it is smaller than the sum of its proper divisors (242314172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

182878480 is a wasteful number, since it uses less digits than its factorization.

182878480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285994 (or 2285988 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 46.

The square root of 182878480 is about 13523.2570041392. The cubic root of 182878480 is about 567.6154409464.

It can be divided in two parts, 1828 and 78480, that added together give a palindrome (80308).

The spelling of 182878480 in words is "one hundred eighty-two million, eight hundred seventy-eight thousand, four hundred eighty".